Empress Eugénie and Napoleon III by André Adolphe Eugène Disderi (Wikipedia)
Empress Eugénie and Napoleon III are dressed to go out in this photograph.
Disderi invented the carte de visite (cdv).
She wears a jacket contoured to the dress beneath instead of a paletot. She also wears a bonnet, headwear that was becoming passé. The dress may be the one shown in the preceding images - it appears to have five flounces, four of which can be seen in this image.
Keywords: Disderi, Empress Eugénie, Empress, Bonaparte family, French, bonnet, bows, high enclosing neckline, jacket, long sleeves, lace, crinoline, flounces